:root {
      color-scheme: light;
      --ink: #202421;
      --muted: #646b64;
      --paper: #f8f9f3;
      --white: #fff;
      --line: #dfe4d9;
      --green: #145d48;
      --lime: #d6f46c;
      --pink: #ff806e;
      --blue: #88c8f4;
      --yellow: #ffd967;
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; z-index: 20; top: 0; background: rgba(248,249,243,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
    .nav-row { min-height: 76px; display: flex; align-items: center; gap: 22px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; text-decoration: none; font-weight: 800; }
    .brand img { display: block; width: 42px; height: 42px; object-fit: contain; }
    .brand-name { font-size: 17px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex: 1; }
    .nav-links a { padding: 10px 9px; text-decoration: none; color: #414840; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--green); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 19px; border: 1px solid var(--green); border-radius: 4px; background: var(--green); color: #fff; text-decoration: none; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .nav-cta { flex: 0 0 auto; min-height: 40px; padding-inline: 15px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(20,93,72,.18); }
    .button.secondary { border-color: var(--ink); background: transparent; color: var(--ink); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: #fff; color: var(--ink); }
    .menu-toggle svg { width: 20px; height: 20px; }
    .hero { position: relative; overflow: hidden; padding: 77px 0 64px; background: #e9f4dd; border-bottom: 1px solid #dce9cf; }
    .hero::before, .hero::after { position: absolute; content: ""; pointer-events: none; }
    .hero::before { width: 190px; height: 190px; right: 8%; top: 40px; border: 2px dashed rgba(20,93,72,.35); border-radius: 50%; animation: turn 34s linear infinite; }
    .hero::after { width: 86px; height: 86px; right: 14%; top: 93px; background: var(--pink); border: 2px solid var(--ink); transform: rotate(12deg); animation: bob 5s ease-in-out infinite; }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0,1fr) minmax(260px,360px); align-items: center; gap: 44px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; color: var(--green); font-weight: 800; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 24px; height: 4px; background: var(--pink); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 700px; margin-bottom: 18px; font-size: clamp(42px, 6vw, 70px); line-height: 1.08; letter-spacing: 0; }
    .hero-copy { max-width: 680px; margin-bottom: 24px; color: #495149; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-note { margin: 18px 0 0; color: #566056; font-size: 13px; }
    .hero-sticker { position: relative; z-index: 2; padding: 24px; border: 1px solid var(--ink); background: var(--yellow); box-shadow: 8px 8px 0 var(--ink); transform: rotate(2deg); }
    .hero-sticker strong { display: block; margin-bottom: 6px; font-size: 25px; line-height: 1.25; }
    .hero-sticker p { margin-bottom: 18px; color: #424234; }
    .hero-sticker .tag-line { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag { display: inline-flex; padding: 5px 9px; border: 1px solid rgba(32,36,33,.5); border-radius: 2px; font-size: 12px; font-weight: 700; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-bottom: 1px solid var(--line); background: #fff; }
    .metric { padding: 21px 24px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--green); font-size: 22px; line-height: 1.2; }
    .metric span { color: var(--muted); font-size: 13px; }
    .section { padding: 76px 0; }
    .section.tint { background: #f0f3e8; border-block: 1px solid var(--line); }
    .section.dark { color: #f8faf5; background: #203c32; }
    .section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
    .section-heading h2 { max-width: 680px; margin-bottom: 0; font-size: clamp(28px, 4vw, 42px); line-height: 1.2; }
    .section-heading p { max-width: 440px; margin: 0; color: var(--muted); }
    .dark .section-heading p { color: #c7d1c8; }
    .intro-layout { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 40px; }
    .intro-layout p { color: #535c53; }
    .intro-points { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0 24px; margin: 0; padding: 0; list-style: none; }
    .intro-points li { padding: 14px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
    .intro-points li::before { content: "↗"; margin-right: 10px; color: #d85a4f; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
    .service { min-height: 175px; padding: 21px; border: 1px solid var(--line); background: #fff; transition: transform .22s ease, box-shadow .22s ease; }
    .service:hover, .review:hover, .case-item:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(34,54,38,.09); }
    .service-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 13px; }
    .service h3 { margin: 0; font-size: 19px; }
    .service .number { color: #9aa397; font-size: 12px; }
    .service p { margin: 0; color: var(--muted); font-size: 14px; }
    .service:nth-child(4n+1) { border-top: 4px solid var(--pink); }
    .service:nth-child(4n+2) { border-top: 4px solid #61a7d4; }
    .service:nth-child(4n+3) { border-top: 4px solid #93b94a; }
    .service:nth-child(4n) { border-top: 4px solid #e3b638; }
    .workflow { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; counter-reset: steps; }
    .step { position: relative; padding: 20px 18px 18px 0; border-top: 2px solid var(--green); counter-increment: steps; }
    .step::before { content: "0" counter(steps); display: block; margin-bottom: 18px; color: #d85a4f; font-size: 14px; font-weight: 800; }
    .step h3 { margin-bottom: 7px; font-size: 18px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .solution { padding: 24px; border: 1px solid var(--line); background: #fff; }
    .solution h3 { margin-bottom: 9px; font-size: 20px; }
    .solution p { margin: 0; color: var(--muted); }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 9px; }
    .model-cloud span { padding: 8px 12px; border: 1px solid #6b8978; color: #f8faf5; font-size: 14px; }
    .model-note { max-width: 800px; margin: 18px 0 0; color: #c7d1c8; font-size: 14px; }
    .case-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
    .case-item { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--line); background: #fff; transition: transform .22s ease, box-shadow .22s ease; }
    .case-item .image-wrap { padding: 10px; background: #eff2e8; }
    .case-item img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; background: #fff; }
    .case-body { padding: 17px; }
    .case-body h3 { margin-bottom: 6px; font-size: 18px; }
    .case-body p { margin: 0; color: var(--muted); font-size: 14px; }
    .comparison { display: grid; grid-template-columns: minmax(230px,.72fr) minmax(0,1.28fr); gap: 28px; align-items: start; }
    .rating-panel { padding: 24px; background: var(--lime); border: 1px solid var(--ink); box-shadow: 6px 6px 0 var(--ink); }
    .rating-panel .stars { color: #a44b18; font-size: 23px; letter-spacing: 0; }
    .rating-panel strong { display: block; margin: 8px 0; font-size: 53px; line-height: 1; }
    .rating-panel p { margin: 0; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; border-collapse: collapse; min-width: 620px; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 14px; }
    th { background: #edf2e8; font-weight: 800; }
    tr:last-child td { border-bottom: 0; }
    .reviews { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
    .review { display: flex; flex-direction: column; justify-content: space-between; min-height: 185px; padding: 19px; border: 1px solid var(--line); background: #fff; transition: transform .22s ease, box-shadow .22s ease; }
    .review blockquote { margin: 0 0 18px; color: #414a41; }
    .review footer { color: var(--muted); font-size: 13px; font-weight: 700; }
    .faq-list { max-width: 900px; border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 42px 17px 0; cursor: pointer; list-style: none; font-weight: 750; }
    summary::-webkit-details-marker { display: none; }
    summary::after { position: absolute; right: 5px; top: 16px; content: "+"; color: var(--green); font-size: 22px; transition: transform .2s ease; }
    details[open] summary::after { transform: rotate(45deg); }
    details p { max-width: 780px; margin: 0; padding: 0 35px 17px 0; color: var(--muted); }
    .contact-layout { display: grid; grid-template-columns: minmax(0,.85fr) minmax(0,1.15fr); gap: 40px; align-items: start; }
    .contact-info { display: grid; gap: 16px; }
    .contact-info p { margin: 0; color: #535c53; }
    .contact-info a { color: var(--green); font-weight: 700; }
    .qr-wrap { width: 150px; padding: 8px; border: 1px solid var(--line); background: #fff; }
    .qr-wrap img { display: block; width: 100%; height: auto; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 22px; border: 1px solid var(--line); background: #fff; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid #cfd6cb; border-radius: 2px; color: var(--ink); background: #fff; }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-note { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }
    .form-submit { grid-column: 1 / -1; justify-self: start; cursor: pointer; }
    .article-list { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 12px; }
    .article-list a { min-height: 112px; display: flex; flex-direction: column; justify-content: space-between; padding: 15px; border: 1px solid var(--line); background: #fff; text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
    .article-list a:hover { border-color: var(--green); transform: translateY(-3px); }
    .article-list strong { font-size: 15px; }
    .article-list span { color: var(--muted); font-size: 12px; }
    .footer { padding: 28px 0; color: #e8eee7; background: #203c32; }
    .footer-row { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .footer p { margin: 0; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
    .footer a { color: #e8eee7; font-size: 13px; text-decoration-color: #8ea99a; text-underline-offset: 3px; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: flex; gap: 8px; }
    .float-contact a, .to-top { display: inline-flex; align-items: center; justify-content: center; min-height: 43px; padding: 0 13px; border: 1px solid var(--ink); border-radius: 3px; background: var(--yellow); color: var(--ink); font-size: 13px; font-weight: 800; text-decoration: none; box-shadow: 2px 2px 0 var(--ink); }
    .to-top { display: none; padding-inline: 12px; cursor: pointer; }
    .to-top.visible { display: inline-flex; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.in-view { opacity: 1; transform: translateY(0); }
    @keyframes turn { to { transform: rotate(360deg); } }
    @keyframes bob { 0%,100% { transform: translateY(0) rotate(12deg); } 50% { transform: translateY(-10px) rotate(18deg); } }
    @media (max-width: 1060px) {
      .nav-row { gap: 12px; }
      .nav-links a { padding-inline: 6px; font-size: 12px; }
      .brand-name { font-size: 15px; }
      .brand img { width: 36px; height: 36px; }
    }
    @media (max-width: 860px) {
      .menu-toggle { display: inline-flex; align-items: center; justify-content: center; margin-left: auto; }
      .nav-cta { display: none; }
      .nav-links { position: absolute; top: 100%; right: 0; left: 0; display: none; align-items: stretch; padding: 8px 20px 14px; border-bottom: 1px solid var(--line); background: var(--paper); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); }
      .nav-links a { padding: 10px 8px; font-size: 14px; }
      .hero-inner { grid-template-columns: 1fr; gap: 28px; }
      .hero-sticker { max-width: 420px; }
      .hero::before { right: 7%; top: 40%; }
      .hero::after { right: 13%; top: 47%; }
      .metrics { grid-template-columns: repeat(2,1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .service-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .reviews { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .article-list { grid-template-columns: repeat(3,minmax(0,1fr)); }
    }
    @media (max-width: 600px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 66px; }
      .brand-name { font-size: 14px; }
      .hero { padding: 55px 0 42px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 16px; }
      .hero::before { width: 125px; height: 125px; right: 5%; top: 54%; }
      .hero::after { width: 55px; height: 55px; right: 13%; top: 59%; }
      .section { padding: 55px 0; }
      .section-heading { display: block; }
      .section-heading p { margin-top: 12px; }
      .intro-layout, .solution-grid, .comparison, .contact-layout { grid-template-columns: 1fr; gap: 24px; }
      .intro-points { grid-template-columns: 1fr; }
      .service-grid, .case-grid, .reviews { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px 16px; }
      .case-item img { aspect-ratio: 16 / 9; }
      .article-list { grid-template-columns: repeat(2,minmax(0,1fr)); }
      .contact-form { grid-template-columns: 1fr; padding: 17px; }
      .field.full, .form-note, .form-submit { grid-column: 1; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .float-contact { right: 12px; bottom: 12px; }
      .float-contact a, .to-top { min-height: 40px; padding-inline: 10px; font-size: 12px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }